Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
"Books II and III ... are entirely missing."
vol.I. Introduction. book I. The philosophers. book IV. The diviners and magicians. book V. The Ophite heresies.--bol.II. book VI. Simon Magus, Valentinus, and their followers. book VII. Basilides, Saturnilus, and others. book VIII. The docetae, Monoimus, and others. book IX. Noetus, Callistus, and others. book X. Summaries, and the word of truth